# K073159: Trauson Bone Screw, Models HA 3.5 and 4.5

- Pathway: 510(k) (Traditional)
- Applicant: Trauson (Jiangsu) Medical Instrument Co., Ltd.
- Decided: Jul 23, 2008 after 258 days
- Product code: HWC (Screw, Fixation, Bone)
- Device class: 2
- Regulation: 21 CFR 888.3040
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 5 generations back to K962823 (1996). 12 ancestors in all.
3 later devices descend from it; 2 cite it directly.
0 of 16 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K060071: Nexa Compression Screw, Nexa Orthopedics, Inc. (2006) Summary page 2.

## Most influential descendants
- K131759: Metallic Locking Compression Bone Plates and Screws System (2013), 1 descendant of its own
- K142943: Metallic Locking Bone Plate and Screw (2015), 0 descendants of its own
- K133525: Locking Compression Bone Plates and Screw System (2014), 0 descendants of its own

## Indications for use
Trauson Bone Screw is indicated for bone reconstruction, osteotomy, arthrodesis, joint fusion, fracture repair, and fracture fixation of bones appropriate for the size of the device.

Source page: https://510kreport.com/device/K073159
Methodology: https://510kreport.com/methodology